Why does my computer keeps rebooting and turning on by itself.

Posted on 2008-10-30
Last Modified: 2012-05-05
A few weeks ago I noticed that my computer had rebooted on its own.  Then one morning it was on when I know it had been turned off for a couple of days.  It then started rebooting while I was working on it.  I would turn off and the power button would turn a solid amber color and it would make short, soft beeping sounds then turn on and boot up.  I then started to get blue screen errors.  I then performed chkdsk /f and it got better, but then started to reboot again on it's own.  I went into the utility partition and performed tests on Blue Screen and I think power and one other that I can not remember (I think hard drive) but they all passed.  Then another blue screen where I could not boot into the machine (0x00000024).  

I then booted to the recovery console and performed chkdsk /r.  Blue screen went away and I was able to boot into Windows.  I backed up my data onto a DVD and running a virus check the computer powered off, started beeping with the solid amber light and then turned on again.  It would boot to Windows and I would be trying to get to the command prompt when it would turn off again with beeping and sold amber light then start up again.  Each time the duration before it would turn off would be shorter and shorter.  Now when I plug in the computer (if I don't unplug it it will turn on by itself and start beeping) it starts beeping with the amber light and turn on again.....and eventually it would turn off beep a few times then turn on, shut off, beep, etc...

I reseated the memory, tried new memory, checked all cables, all fans work, removed motherboard battery, only have keyboard, mouse and monitor cables hooked and nothing makes the problem go away.

It sounds like a battery issue but I'm not sure.   If it is do I have to buy the battery from Dell?

Please help.

P.S.  Computer is about 3 years old.
Question by:leavenworth
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2

Accepted Solution

dathho earned 500 total points
ID: 22846278
Power Supply.
LVL 92

Expert Comment

ID: 22848616
can you post a couple of minidumps?
it can be you have bad caps (swollen, leaking) as per
a good start is testing the basiscs : ram and disk ram :
disk :

Author Comment

ID: 22851005
I can't boot into the computer anymore.  No way to get you any minidumps.  PC keeps powering off, then solid amber light with soft beeping, then it starts for a bit then turns off again.  Vicious cycle. No pattern to the beeps either.  I already checked for bulging or leaking capacitor and there is none.  I didn't check the RAM via memtest but I did run the Dell diagnostic via the utility partition and no issues and I replaced the RAM with good RAM and moved it to different slot as well.  Already checked and fixed the hard disk and ran test via Dell diagnostic as well.
LVL 92

Expert Comment

ID: 22851204
>>  No way to get you any minidumps   <<   why not? hook the drive to a working pc, and copy them

Featured Post

Enroll in June's Course of the Month

June's Course of the Month is now available! Every 10 seconds, a consumer gets hit with ransomware. Refresh your knowledge of ransomware best practices by enrolling in this month's complimentary course for Premium Members, Team Accounts, and Qualified Experts.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is an article based on some fact, and much personal opinion. While you may differ from me in the things you value in a personal computer, I hope this advice can serve to inspire a more objective comparison of two computers, help your figure out…
How can this article save you time AND money?  In just a few minutes you may discover something you didn't know existed that is easy enough for you to fix yourself!
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
The viewer will learn how to successfully download and install the SARDU utility on Windows 8, without downloading adware.

695 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question